CODEWITHSUNDEEP
.netdns
Henry
Henry

Reputation: 3013

DNS GetHostEntry - How to Specify DNS Server? .NET

In .NET you can make a call to 

 Dns.GetHostEntry(hostname)

This uses the DNS entries on your NETWORK Settings to do the DNS Look up, but I would like to specify the DNS Server 8.8.8.8 to do the look up against, without changes the DNS Settings in the NETWORK Settings.

Can this be accomplished?

Upvotes: 3

Views: 2863

Answers (1)

MichaC
MichaC

Reputation: 13381

There is nothing build into .NET yet, but there are NuGet packages you can use which do an actual DNS lookup against a DNS server of your choice.

DnsClient.NET is one of those. It also has methods to create a host entry with similar syntax.

Example:

var endpoint = new IPEndPoint(NameServer.GooglePublicDns);    
var lookup = new LookupClient(endpoint);

IPHostEntry hostEntry = lookup.GetHostEntry(hostOrIp);
Console.WriteLine(hostEntry.HostName);
foreach (var ip in hostEntry.AddressList)
{
    Console.WriteLine(ip);
}
foreach (var alias in hostEntry.Aliases)
{
    Console.WriteLine(alias);
}

Upvotes: 3

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